CVE-2018-11771

Publication date 16 August 2018

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

When reading a specially crafted ZIP archive, the read method of Apache Commons Compress 1.7 to 1.17's ZipArchiveInputStream can fail to return the correct EOF indication after the end of the stream has been reached. When combined with a java.io.InputStreamReader this can lead to an infinite stream, which can be used to mount a denial of service attack against services that use Compress' zip package.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libcommons-compress-java	25.10 questing	Fixed 1.18-1
	25.04 plucky	Fixed 1.18-1
	24.10 oracular	Fixed 1.18-1
	24.04 LTS noble	Fixed 1.18-1
	23.10 mantic	Fixed 1.18-1
	23.04 lunar	Fixed 1.18-1
	22.10 kinetic	Fixed 1.18-1
	22.04 LTS jammy	Fixed 1.18-1
	21.10 impish	Fixed 1.18-1
	21.04 hirsute	Fixed 1.18-1
	20.10 groovy	Fixed 1.18-1
	20.04 LTS focal	Fixed 1.18-1
	19.10 eoan	Fixed 1.18-1
	19.04 disco	Fixed 1.18-1
	18.10 cosmic	Fixed 1.18-1
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libcommons-compress-java	Other: a41ce68 Other: 0fe6ae3 Other: 64ed6dd

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H